| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 408144000 | TOOL OF SPECIFIC DIVERSE MATERIAL | 32 |
| 20080232915 | TWIST DRILL FOR DRILLING WITH A COUNTERSINK CUTTING ARRANGEMENT, AND A CUTTING TOOL WITH A COUNTERSINK CUTTING ARRANGEMENT, AND A CUTTING-CHAMFERING TOOL - A twist drill for drilling with a countersink cutting arrangement, and a cutting tool with a countersink cutting arrangement, and a cutting-chamfering tool. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72( | 09-25-2008 |
| 20080240879 | PROCESS FOR THE PRODUCTION OF AN ELEMENT COMPRISING AT LEAST ONE BLOCK OF DENSE MATERIAL CONSTITUTED BY HARD PARTICLES DISPERSED IN A BINDER PHASE: APPLICATION TO CUTTING OR DRILLING TOOLS - A process is presented which produces at least one block of dense material constituted by hard particles dispersed in a binder phase, it being possible for the dense material to be enriched locally with binder phase by imbibition. The process includes bringing at least one imbibition area of a surface of the block, preferably coated with a coating material, into contact with an imbibiting material which locally enriches the block with binder phase. The block in contact with the imbibiting material is then subjected to a suitable thermal cycle constituted by heating, temperature maintenance and cooling. This serves to bring some or all of the imbibiting material and the binder phase of the block into the liquid state in such a manner that the enrichment with binder phase takes place solely through the imbibition area. The block is used in connection with the building of a drill bit or tool. | 10-02-2008 |
| 20090022560 | Cutting or Parting Tool - A cutting or parting tool including at least one cutting tooth connected with a basic element. The cutting tooth has a layer of carbide or of a mixture of carbide and polycrystalline diamonds. Furthermore, the carbide or mixture layer is connected to a carrier element of the cutting tooth made of a weldable material which is welded to the basic element. | 01-22-2009 |
| 20090047082 | Novel composite compositions and new and novel machine and contact tools - Composite compositions and machine and contact tools, for example, metal boring tools and face mills that are manufactured from them. The tools are provided with composite structure to lighten the tools and yet retain the strength and durability of the tool. The novelty resides in the use of additives to certain fiber composite materials in the composites that make up a portion of the tool, especially tool bars. | 02-19-2009 |
| 20090060669 | Coated drill and a method of making the same - The present invention relates to a twist drill comprising a cemented carbide or high speed steel substrate and a multilayered aperiodic (Ti,Al)N-coating having a binary A/B/A/B/A/B structure, where the composition of layer A is Al | 03-05-2009 |
| 20090148249 | PCBN Cutting Tool Components - A cutting tool component ( | 06-11-2009 |
| 20090208301 | Diamond Sintered Compact - An object is to raise both the wear resistance and chipping resistance of diamond sintered compacts while taking advantage of the characteristics of highly chipping-resistant microfine-grain diamond sintered compacts. A sintered diamond layer | 08-20-2009 |
| 20090214309 | High performance cutting tools - An improved cutting tool for drilling complex holes in a workpiece such as an automotive aluminum wheel, in which the tool has a shank and an integrally formed support section. A cutter insert secured in the support section. The cutter insert is formed with opposed flutes along the longitudinal axis of the tool. The tool is improved by reducing cutting forces and optimizing chip disposal, thereby cutting costs by reducing the load requirements for drilling holes, and this is accomplished by creating a positive rake angle at the flutes. | 08-27-2009 |
| 20100003093 | Hard Tip and Method for Producing the Same - The object of the invention is to provide a hard tip where the nose side has wear resistance and the bonding side has toughness. The chemical composition of sintered hard alloy constituting the hard tip is such that a compounding ratio of WC to Co is substantially the same from the nose side to the bonding side, and a first bonding metal or a second bonding metal has a gradient chemical composition wherein the content of the first bonding metal or the second bonding metal is increased from the nose side to the bonding side, the first bonding metal does not form the eutectic texture with WC, and the second bonding metal has the eutectic temperature with WC over the eutectic temperature of WC—Co sintered hard alloy and the melting point over the liquid phase sintering temperature of WC—Co sintered hard alloy. | 01-07-2010 |
| 20100003094 | DRILL BIT - A cutting head is formed at one end of the shank and comprises a cylindrical member having an annular wall defining a circular cutting edge. A cutting blade having a sharp cutting edge extends from adjacent a centering point to adjacent the cutting edge. The cutting head is formed of a first material and the cutting blade is formed of a second material. The cutting blade is brazed to the cutting head. A method of making a drill bit comprises investment casting a shank and a cutting head of a first material. A pocket is formed that extends to the cutting edge. A coupon of a second material is brazed in the pocket. A sharp edge is ground in the coupon. | 01-07-2010 |
| 20100124466 | Trepanning Drill - A trepanning drill having a drill axis of rotation (A) and comprising a drill bore extending rearwardly from a front portion thereof. The drill body has at least two cutting edges formed in the front portion thereof. Each of the cutting edges has a cutting external edge and a cutting internal edge. A circle passing through the cutting external edge of each of the cutting edges forms an external circle having a first diameter (D | 05-20-2010 |
| 20100150677 | Rotary Cutting Tool and Method For Manufacturing Such a Rotary Cutting Tool - A rotary cutting tool is provided which is less likely to cause chips to get stuck, and which can be manufactured at a low cost. | 06-17-2010 |
| 20100196109 | CUTTING TOOLS HAVING PLASMA DEPOSITED CARBON COATINGS - A cutting tool comprising a body, a cutting edge on at least one part of said body and a plasma deposited carbon coating layer provided on said cutting edge that is substantially free of macro-particles. | 08-05-2010 |
| 20100232898 | ONLY PARTLY GROUND TOOL ROD MADE OF SINTERED MATERIAL - A tool bit ( | 09-16-2010 |
| 20100278603 | Multi-Piece Drill Head and Drill Including the Same - One non-limiting aspect of the present disclosure is directed to a multi-piece spade drill head for a spade drill, wherein the spade drill includes an elongate body portion and a cutting portion removably secured to an end of the body portion. The multi-piece spade drill head includes at least two insert pieces, each piece including a cutting edge. The at least two insert pieces are configured to be removably secured to the body portion of the spade drill adjacent one another and with the cutting edges of the insert pieces aligned to together form a cutting edge on an end of the spade drill. | 11-04-2010 |
| 20100290849 | COMPOSITE CEMENTED CARBIDE ROTARY CUTTING TOOLS AND ROTARY CUTTING TOOL BLANKS - Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide. | 11-18-2010 |
| 20100329805 | DIAMOND TOOL - Disclosed is a diamond tool. The diamond tool is coupled to a processing apparatus and may form a hole in a workpiece. The diamond tool includes a shank coupled to a connection portion formed at one end thereof and further coupled to the processing apparatus. There is a cylindrical opening formed at the other end of the shank; and segments formed at intervals along the periphery of the shank, the segments come into contact with the workpiece to form a hole in the workpiece. Each of the segments has at least one linear groove formed on the inner surface thereof or at least one oblique groove formed on the outer surface thereof. The segments are improved in shape to achieve improved cutting and cooling performance, increased stiffness and durability, and reduced load upon processing. | 12-30-2010 |
| 20110020085 | Drill and production method - A drill having a drill head ( | 01-27-2011 |
| 20110027030 | Treated hole saw having efficient slug removal - A hole saw having efficient slug removal preferably includes a saw cup, a shank portion and a pilot cutting device. A cutting surface is formed on an open end of the saw cup. The inside surface, outside surface and cutting surface of the saw cup are given a low friction treatment. A fluoropolymer resin coating is used for the low friction treatment. The friction treatment is applied by spraying thereof on the saw cup. The saw cup is then heated to a predetermined temperature for a set period of time. The low friction treatment is cured when the saw cup is used. The shank portion is attached to a closed end of the saw cup with any suitable fastening process. The shank portion preferably retains the pilot cutting device. | 02-03-2011 |
| 20110176879 | SUPERHARD BODY, TOOL AND METHOD FOR MAKING SAME - A method for making a superhard tip for a rotary machine tool, the method including contacting at least one sintered polycrystalline superhard structure to a carrier body comprising cemented carbide to form a pre-compact assembly, and subjecting the pre-compact assembly to a pressure and temperature at which the superhard material is thermodynamically stable to form a pre-form body for a superhard tip; and processing the pre-form body to form a superhard tip. | 07-21-2011 |
| 20130017028 | MULTI-PIECE TWIST DRILL HEAD AND TWIST DRILL INCLUDING THE SAMEAANM Fang; X. DanielAACI BrentwoodAAST TNAACO USAAGP Fang; X. Daniel Brentwood TN USAANM Dufour; Jean-LucAACI FranklinAAST TNAACO USAAGP Dufour; Jean-Luc Franklin TN USAANM Wills; David J.AACI FranklinAAST TNAACO USAAGP Wills; David J. Franklin TN US - One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece formed from a first hard material, and a peripheral piece formed from a second hard material. The core piece and peripheral piece each comprise a cutting edge and are adapted to mate to provide a central region and a peripheral region, respectively, of the multi-piece twist drill head. A twist drill including the multi-piece twist drill head is also disclosed. | 01-17-2013 |
| 20130089384 | Drill and a Production Method for a Drill - A drill includes a drill bit, an intermediate part, and a shaft. The drill bit is made from a sintered carbon-containing hard metal. The intermediate part is made from steel and arranged along an axis between the drill bit and the shaft. An activity of carbon in the steel of the intermediate part is greater at a temperature ranging from 1100° C. to 1450° C. than an activity of carbon in the sintered hard metal at the temperature. | 04-11-2013 |
| 20130302102 | Bore Cutting Tool and Method of Making the Same - A bore cutting tool, particularly for cutting metal workpieces, includes a tool substrate and a tool coating on a surface of the tool substrate. The bore cutting tool comprises a plurality of pits in the surface of the tool substrate and wherein the tool coating extends over the pits such that the pit surface comprises the tool coating. In this way, the pit dimensions can be retained over prolonged tool life and the pits, with their coated surface, are particularly effective at retaining lubricant so that the thickness of a lubricant film can be increased as compared to a tool without the coated pits. In embodiments the pits are formed by laser etching and are present only on the cylindrical land. Average pit depth is suitably in the range 8 μm to 25 μm, average pit width and pit length is independently selected from 40 μm to 250 μm and average pit density is 20 to 30 pits/mm | 11-14-2013 |
| 20140023445 | POWER TOOL ACCESSORY - A power tool accessory includes a shank member having a first hardness. A conically-shaped body is coupled to the shank member and includes a series of stepped shoulders that increase in diameter from a tip portion to a base portion. A flute extends substantially from the tip portion to the base portion, with cutting edges defined at the intersection of the flute and the shoulders. The body has a second hardness greater than the first hardness. | 01-23-2014 |
| 20140161550 | Micro-Drill and Method for Manufacturing the Same - A micro-drill and a method for manufacturing the same are disclosed. The micro-drill comprises: a substrate having a surface, an ultra-nanocrystalline diamond film including a plurality of ultra-nanocrystalline diamond grains, which is formed on the surface of the substrate; wherein the substrate is a tungsten carbide substrate and a size of each ultra-nanocrystalline diamond grain is in a range from 1 to 30 nm. | 06-12-2014 |
| 20140248100 | DRILL HAVING A COATING - The present invention relates to a method for coating a substrate, preferably a drill, wherein at least one first HiPIMS layer is applied by means of a HiPIMS process. Preferably, at least one second layer is applied to the first HiPIMS layer by means of a coating process that does not contain a HiPIMS process. | 09-04-2014 |
| 20140271006 | MULTI-PIECE TWIST DRILL HEAD AND TWIST DRILL INCLUDING THE SAME - One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece formed from a first hard material, and a peripheral piece formed from a second hard material. The core piece and peripheral piece each comprise a cutting edge and are adapted to mate to provide a central region and a peripheral region, respectively, of the multi-piece twist drill head. A twist drill including the multi-piece twist drill head is also disclosed. | 09-18-2014 |
| 20140328640 | BI-METAL DRILL BIT - A bi-metal drill bit includes a body defining a cutting end and a shank end. At least a portion of the cutting end is formed of a first metal section and at least a portion of the shank end is formed of a second metal section that is welded to the first metal section. The first metal section has a first metal having a material hardness that is higher than a second material hardness of the second metal section. One of the first and second metal sections is treated either by coating or oxide treating so as to have a recognizable different appearance than the other of the first and second metal sections. A length to diameter ratio of the first metal section has been optimized to allow electrical resistance welding, provide better strength in the rear end after the tip breaks through a workpiece, and to minimize cost. | 11-06-2014 |
| 20140356088 | DRILL BIT - An elongated drill bit has a shank at one end and working end at the other. A flute portion is between the working end and the shank. The flute portion is continuous with the shank and working end and is generally unitarily formed with them. The flute portion has at least one flute with a helix angle between approximately 30° and 35°. The working end has a pilot tip with a cutting portion. A tapered web is formed in the flute portion, a thickness of the web at the tip of the working end is about 9% to 15% of the nominal diameter. | 12-04-2014 |
| 20150098769 | RECONFIGURABLE CUTTING TOOL - A reconfigurable cutting tool includes a boring head at one end, an attachment portion at a second end that is opposite the first end, and a boring bar disposed between the boring head and the attachment portion. The boring bar is made of a shape memory material such that a geometry of the reconfigurable boring tool is selectively changed in response to an activation signal from a temperature controlling processor. | 04-09-2015 |
| 20150298220 | ROTATING TOOL, IN PARTICULAR DRILL, AS WELL AS A METHOD FOR MANUFACTURING A ROTATING TOOL OF THIS TYPE - The rotating tool, in particular a drill, includes a fluted cutting shank made of a resistant material, in particular carbide, extending in an axial direction along a rotational axis. Connecting to the cutting shank in the axial direction is an intermediate shank made of a material of greater elasticity in comparison the resistant material, in particular of tool steel. The intermediate shank includes an insertable cutting insert that may be exchanged. The cutting shank is preferably a cutting shank recycled from a used solid carbide drill. | 10-22-2015 |
| 20160052069 | TWIST DRILL WITH CERAMIC INSERTS - A twist drill includes a shank; a body adjacent the shank extending along a rotational, longitudinal axis of the twist drill, the body made of a carbide material; a plurality of helically extending chip flutes formed into the body with a web formed between the chip flutes, the chip flutes oriented at a helix angle relative to the longitudinal axis, each chip flute flanked by a major cutting edge with a corresponding flank or land and a minor cutting edge with a corresponding flank or land; and a ceramic insert attached to a notch formed in the body of the drill, wherein the ceramic insert forms only a portion of each of the major and minor cutting edges of the twist drill. | 02-25-2016 |
